Stepless sliding doors system
The present invention is directed to a stepless sliding doors system, comprising: two sliding doors ( 10 ), at least one of them comprising: two vertical poles ( 30 ); means ( 50 ) for rotating each of the vertical poles ( 30 ); to each side of the vertical poles ( 30 ) is firmly connected a hand-connector ( 36 ); each of the hand-connectors ( 36 ) is pivotally connected to a rail-cart ( 18 ) having two rollers ( 42 ); each of the rail-carts ( 18 ) comprises a horizontal hinge ( 58 ) disposed between the rollers ( 42 ), and a vertical springy hinge ( 70 ), for applying pulling or pushing force of the rollers on a rail thereof, thereby allowing placing the sliding doors of the system in the same plane when in the closed state of the doors, and shifting the doors one along the other in the open state thereof, and additionally preventing the wheels to deviate from a rail in the case of slight deformations.
1. A stepless sliding door system, comprising:
two sliding doors ( 10 a , 10 b ) disposed in a closed state thereof on the same plane, along upper and lower parallel rails ( 16 ), at least one of said doors having:
a chassis ( 46 ) connected to said sliding door;
two vertical rotatable poles ( 30 );
two pairs of rail-carts ( 18 );
two pairs of hand-connectors ( 36 a , 36 b ), each of the hand-connectors firmly connected in one end thereof to one of said vertical rotatable poles ( 30 ), and pivotally connected in another end thereof to one of said rail-carts ( 18 );
two spiral rotation assemblies ( 72 a , 72 b ), each comprising a vertically shiftable tube ( 50 ) in which one of said vertical rotatable poles ( 30 ) is disposed, for rotating each of said vertical poles ( 30 ) by 90 degrees upon shifting said vertically shiftable tubes ( 50 ); and
a transverse rod ( 60 , 54 ), connecting the vertically shiftable tubes ( 50 ) of each of said spiral rotation assemblies ( 72 a , 72 b ), for allowing simultaneous shifting of the vertically shiftable tubes ( 50 );
thereby upon vertically shifting one of said vertically shiftable tubes ( 50 ), simultaneously rotating said vertical poles ( 30 ), resulting in distancing said chassis from said pair of rails ( 16 ), thereby placing said sliding door in parallel to the other sliding door, distantly from the other sliding door, thereby allowing sliding said door in parallel to the other door of said sliding door system such that the doors do not block each other.
2. The system according of claim 1 , wherein said transverse rod comprises:
a telescopic rod ( 60 ) having a tube ( 22 ) and two shafts ( 24 a , 24 b ), each pivotally connected to one of said vertical poles ( 30 ); and
a hinge ( 20 ) for pivotally connecting said tube ( 22 ) to said chassis.
3. The system according of claim 2 , further comprising an electric motor ( 52 ), for shifting one of said vertically shiftable tubes ( 50 ), thereby automating sliding said doors.
4. The system according of claim 1 , wherein said transverse rod comprises:
a horizontal bar ( 54 ), firmly connected to said vertically shiftable tubes ( 50 ), thereby upon vertically shifting one of said vertically shiftable tubes ( 50 ), simultaneously shifting the other tube.
5. The system according to claim 4 , further comprising an electric motor, for vertically shifting said horizontal bar ( 54 ) or said vertically shiftable tube ( 50 ).
6. The system according of claim 1 , wherein said chassis ( 46 ) hangs on the upper of said pair of rails.
7. The system according of claim 1 , wherein said chassis stands on the lower of said pair of rails.
8. The system according of claim 1 , wherein each of said rail-carts is gyroscopic.
9. The system according of claim 1 , wherein each of said rail-carts ( 18 ) comprises:
a base ( 64 );
a ball bearing ( 62 ), for connecting said base ( 64 ) to a corresponding hand-connector ( 36 );
two rollers ( 42 ) connected to said base ( 64 ) from each side of said ball bearing ( 62 ); and
a spring ( 34 ), for applying pulling or pushing force on said base ( 64 ).